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authorTomasz Figa <t.figa@samsung.com>2014-03-17 23:28:22 +0100
committerKukjin Kim <kgene.kim@samsung.com>2014-03-20 20:09:27 +0100
commit559ba237999d723ccba5b4a75cf6b280bac1ab21 (patch)
tree763d8c73834bde6b5c65e3e04241c215468d390c /arch/arm/mach-exynos
parentARM: EXYNOS: Fix abuse of CONFIG_PM (diff)
downloadlinux-559ba237999d723ccba5b4a75cf6b280bac1ab21.tar.xz
linux-559ba237999d723ccba5b4a75cf6b280bac1ab21.zip
ARM: EXYNOS: Remove PM initcalls and useless indirection
This patch simplifies Exynos PM initialization and makes it multiplatform friendly by replacing initcalls used originally to invoke all the initialization code with explicit function calls. In addition, an useless subsys_interface is removed, as all its .add_dev callback did was setting two function pointers. Signed-off-by: Tomasz Figa <t.figa@samsung.com> Acked-by: Kyungmin Park <kyungmin.park@samsung.com> Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
Diffstat (limited to 'arch/arm/mach-exynos')
-rw-r--r--arch/arm/mach-exynos/common.c1
-rw-r--r--arch/arm/mach-exynos/common.h6
-rw-r--r--arch/arm/mach-exynos/pm.c50
3 files changed, 19 insertions, 38 deletions
diff --git a/arch/arm/mach-exynos/common.c b/arch/arm/mach-exynos/common.c
index 025fd8215ca3..e98ddadc5f74 100644
--- a/arch/arm/mach-exynos/common.c
+++ b/arch/arm/mach-exynos/common.c
@@ -315,6 +315,7 @@ void __init exynos_init_late(void)
return;
pm_genpd_poweroff_unused();
+ exynos_pm_init();
}
static int __init exynos_fdt_map_chipid(unsigned long node, const char *uname,
diff --git a/arch/arm/mach-exynos/common.h b/arch/arm/mach-exynos/common.h
index f76967b1c551..82e08fb83eae 100644
--- a/arch/arm/mach-exynos/common.h
+++ b/arch/arm/mach-exynos/common.h
@@ -27,6 +27,12 @@ void exynos_init_late(void);
void exynos_firmware_init(void);
+#ifdef CONFIG_PM_SLEEP
+extern void __init exynos_pm_init(void);
+#else
+static inline void exynos_pm_init(void) {}
+#endif
+
extern struct smp_operations exynos_smp_ops;
extern void exynos_cpu_die(unsigned int cpu);
diff --git a/arch/arm/mach-exynos/pm.c b/arch/arm/mach-exynos/pm.c
index ba18214c9aca..596ed13c4166 100644
--- a/arch/arm/mach-exynos/pm.c
+++ b/arch/arm/mach-exynos/pm.c
@@ -92,39 +92,6 @@ static void exynos_pm_prepare(void)
__raw_writel(virt_to_phys(s3c_cpu_resume), S5P_INFORM0);
}
-static int exynos_pm_add(struct device *dev, struct subsys_interface *sif)
-{
- pm_cpu_prep = exynos_pm_prepare;
- pm_cpu_sleep = exynos_cpu_suspend;
-
- return 0;
-}
-
-static struct subsys_interface exynos_pm_interface = {
- .name = "exynos_pm",
- .subsys = &exynos_subsys,
- .add_dev = exynos_pm_add,
-};
-
-static __init int exynos_pm_drvinit(void)
-{
- unsigned int tmp;
-
- if (soc_is_exynos5440())
- return 0;
-
- s3c_pm_init();
-
- /* All wakeup disable */
-
- tmp = __raw_readl(S5P_WAKEUP_MASK);
- tmp |= ((0xFF << 8) | (0x1F << 1));
- __raw_writel(tmp, S5P_WAKEUP_MASK);
-
- return subsys_interface_register(&exynos_pm_interface);
-}
-arch_initcall(exynos_pm_drvinit);
-
static int exynos_pm_suspend(void)
{
unsigned long tmp;
@@ -220,12 +187,19 @@ static struct syscore_ops exynos_pm_syscore_ops = {
.resume = exynos_pm_resume,
};
-static __init int exynos_pm_syscore_init(void)
+void __init exynos_pm_init(void)
{
- if (soc_is_exynos5440())
- return 0;
+ u32 tmp;
+
+ pm_cpu_prep = exynos_pm_prepare;
+ pm_cpu_sleep = exynos_cpu_suspend;
+
+ s3c_pm_init();
+
+ /* All wakeup disable */
+ tmp = __raw_readl(S5P_WAKEUP_MASK);
+ tmp |= ((0xFF << 8) | (0x1F << 1));
+ __raw_writel(tmp, S5P_WAKEUP_MASK);
register_syscore_ops(&exynos_pm_syscore_ops);
- return 0;
}
-arch_initcall(exynos_pm_syscore_init);